Chapter 8.3-8.5 Flashcards
Scale factor
The common ratio between corresponding lengths of similar polygons
If 2 polygons are similar
Then the ratio of their perimeters is equal to the ratio of their corresponding sides
Angle-angle similarity post
If two angles of one triangle are congruent to two angles of a 2nd triangle, then the triangle’s are similar.
Side-side-side similarity thm
If the corresponding sides of two triangles are proportional, then the two triangles are similar.
Side-angle-side similarity thm
If an angle of one triangle is congruent to an angle of a second triangle and the lengths of the sides including these angles are proportional, then the triangles are similar
Similar polygons
1) their corresponding angles are congruent
2) the lengths of corresponding sides are proportional